Description
The software contains a protection mechanism that restricts access to a long filename on a Windows operating system, but the software does not properly restrict access to the equivalent short “8.3” filename.
On later Windows operating systems, a file can have a “long name” and a short name that is compatible with older Windows file systems, with up to 8 characters in the filename and 3 characters for the extension. These “8.3” filenames, therefore, act as an alternate name for files with long names, so they are useful pathname equivalence manipulations.
Modes of Introduction:
– Implementation
Related Weaknesses
CWE-41
Consequences
Confidentiality, Integrity: Read Files or Directories, Modify Files or Directories
Potential Mitigations
Phase: System Configuration
Description:
Disable Windows from supporting 8.3 filenames by editing the Windows registry. Preventing 8.3 filenames will not remove previously generated 8.3 filenames.
CVE References
- CVE-1999-0012
- Multiple web servers allow restriction bypass using 8.3 names instead of long names
- CVE-2005-0471
- Multi-Factor Vulnerability. Product generates temporary filenames using long filenames, which become predictable in 8.3 format.
